DVR players and we used an OS in those. All the systems I've seen had an OS, even when none was apparent.
Are you really looking for a no-OS player? There are small cheap android boxes that have many media players. But no-OS? You may be unicorn hunting.
Hi. I am after a standalone media player, not one that runs on windows or mac, but something you can place on an external drive and boot off, something totally independant. And it must have an audio equalizer.
I used xmbc a few years ago, but that has gone and the new stuff is all windows or os based.
Many thanks. John.